GaH3

Gallium hydride, with the chemical formula GaH3, is a chemical compound. It is also known as digallane. GaH3 is a binary hydride of gallium. It is a volatile compound. Pure GaH3 is a colorless solid. However, it can decompose relatively easily.

GaH3 is prepared by the reduction of gallium compounds. One common method involves the reaction of gallium trichloride (GaCl3) with lithium aluminum hydride (LiAlH4). Other reducing agents can also be used. The synthesis often requires careful control of reaction conditions to prevent decomposition and ensure purity.

In its solid form, GaH3 exists as a polymer. It has a chain-like structure. The gallium and hydrogen atoms alternate along the chain. In the gas phase, it exists as a monomer, GaH3. This monomer is analogous to other group 13 hydrides likeAlH3.

GaH3 is a reactive compound. It can react with water and other protic solvents. It is also sensitive to air and heat, which can lead to its decomposition. Due to its instability and reactivity, GaH3 is not commonly used in industrial applications. Its study is primarily of academic and research interest in the field of inorganic chemistry.